Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Narrative (Details)

v3.19.1
Stockholders' Equity - Narrative (Details) - $ / shares
 3 Months Ended
Jan. 30, 2019
Mar. 31, 2019
Jan. 31, 2019
Dec. 31, 2018
Class of Stock [Line Items]        
Shares of common stock outstanding (shares)   49,151,219   54,151,219
Shares of preferred stock outstanding (shares)   7,907    
Par value of common stock (USD per share)   $ 0.001   $ 0.001
Preferred stock authorized (shares)   10,000   10,000
Par value of preferred stock (USD per share)   $ 0.001   $ 0.001
Preferred Stock | Preferred Share Exchange        
Class of Stock [Line Items]        
Stock issued (shares) 5,000      
Common Stock | Stock Exchange, Shares from Existing Shareholders        
Class of Stock [Line Items]        
Stock issued (shares) 5,000,000      
Series B Preferred Stock        
Class of Stock [Line Items]        
Shares of preferred stock outstanding (shares)   5,000   0
Series B Preferred Stock | Preferred Stock        
Class of Stock [Line Items]        
Preferred stock authorized (shares)     5,000  
Stock issued upon conversion (shares)   1,000    
Common stock ownership limit (as a percent)   9.99%    
Beneficial ownership limitation (as a percent)   19.99%    
Notice period before increase of Beneficial Ownership Limitation   61 days    
Par value of preferred stock (USD per share)   $ 0.001